You'd think that, and then:
http://www.desmoinesregister.com/apps/p ... 39/archive
I believe there's a "pork tenderloin" thread floating about somewhere, but if you're looking for charcuterie or pork belly, I'd get your fill in Chicago before heading out of town. Otherwise, it's either going to be served on a stick or batter-dipped.
Having said that, you could do worse for BBQ than Flying Mango, a Catering company-cum-restaurant that does a bit of everything--BBQ, cajun, caribbean--and whose menu is diverse enough where one person can order platters and others in the party can order seafood entrees or salads. The size of the menu was somewhat disenchanting (but hardly a surprise given the demo), but I was pleasantly surprised this past weekend to discover that, while the smoked meats platter was no Kreuz's or Cozy Corner or even Honey One, it was surprisingly pretty good. Over-priced, yes, but you takes what yous gets in Iowa.
Lucca's, an Italian restaurant by the capital, was decent as well. I haven't eaten at Splash (seafood) or Centro (Italian small plates), but I'd be skeptical about both--Des Moines is making an earnest attempt at urban revitalization, but I wouldn't put my trust in it anymore than I would Bolingbrook's Promenade or the Glenview Town Center.
Two other thoughts: Sage is the "contemporary American" restaurant of the area (and was recommended when I checked chowhound before I headed to DM this past weekend); there is also some local chain that deep fries its tacos and is considered a local guilty pleasure. Having just been to the Iowa State Fair, and having seen how Iowans are at their most liberal with frying oil, I'll leave the interpreting up to you.
Depending on your travel plans, if you choose to eat dinner at a place off I-88 or I-80 on the way west, I would heartily suggest the Motley Cow Cafe in Iowa City, about five minutes off I-80 (exit 244). I'm spending a great deal of my time in IC working on a project and I eat here at least once a week; it's very much in the Lula Cafe vein of seasonality and ingredient-focusing--but lacks quite a bit of the pretension you'd find in a Chicago equivalent. The chef is, by the way, utterly fantastic with pork.
Flying Mango Restaurant and Catering
4345 Hickman Road
Des Moines, IA 50310
515-255-4111
Lucca
420 E Locust St
Des Moines, IA 50309
(515) 243-1115
The Motley Cow Cafe
327 E Market St
Iowa City, IA 52245
(319) 688-9177